12519743807 has 4 divisors (see below), whose sum is σ = 12520539096. Its totient is φ = 12518948520.

The previous prime is 12519743791. The next prime is 12519743813. The reversal of 12519743807 is 70834791521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70834791521 = 13 ⋅5448830117.

It is a cyclic number.

It is not a de Polignac number, because 12519743807 - 2⁴ = 12519743791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12519743507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373544 + ... + 405677.

It is an arithmetic number, because the mean of its divisors is an integer number (3130134774).

Almost surely, 2^12519743807 is an apocalyptic number.

12519743807 is a deficient number, since it is larger than the sum of its proper divisors (795289).

12519743807 is an equidigital number, since it uses as much as digits as its factorization.

12519743807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795288.

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 12519743807 in words is "twelve billion, five hundred nineteen million, seven hundred forty-three thousand, eight hundred seven".